Improvement in wood pavements



teniet rmer @time @time Letters Patent No. 109,139, dated November 8, 1870.

The Schedule referred to in these Letters Patent and making paxt of the same.

struction, each block section being composed of a series of longitudinal and transverse blocks, tied together .by cross-bolts;`

Figure 2 is a plan, on an enlarged scale, of the sec-- tional foundation and substructure, detached from the blocks.;

'Figure 3, a sectional elevation, on a larger scale than iu fig. 1, and taken between the blocks, of a block section with its substructure; and

' Figure 4, an elevation of a block section.

Stimilar letters of reference indicate corresponding par s. This invention relates to a street-pavement, preferably made mainly or wholly of wood, and comprising, as in a previousapplication for Letters Patent vmade by me, a series of longitudinal and trausversely-disposed blocks, leaving spaces between the longitudinal blocks for the insertion of cement; but inthe present arrangement said combined blocks are grouped in any desired number to form separate block sections, and united by cross-tie bolts, also each block section made to carry a. sectional foundation. This constitutes both a strong and durable pavement, offering enlarged facilites for laying down or taking up and securing la -good footholdior horses, together with a saving of material in theA laying of the foundation and better preservation ofthe blocks. Befeging to the accompanying drawing- A A A represent a series of separate and independent block sections, of any suitable size convenient to handle in laying down or taking up a streetpavement.

Each of these sectiousis composed of longitudinal or main blocks B B and transverse blocks C O, the latter heilig setup in the regular courses or rows of the main blocks, and preferably in alternate succession in adjoining rows, and being united by tie-bolts b b, .to form a block section. The blocks G C, which are wider than the blocks B B, to establish intermediate spaces c c'between the rows for cement or suitable iilliu g, may be made either thick or thin, as desired, and either of the same or less height than the main blocks B B, but when of the same height their upper corners are preferably beveled, as shown in iig. 4.

Each of these block sectionsA is made to carry, or has secured to it, its own foundation, which is ot' sectional construction, being made up of independent planks or strips DD, arranged in line of the main blocks B B, and to which the several blocks are nailed or otherwise secured, and these foundation planks made to rest ou and secured to sleepers E E, situa-ted at any suitable distances apart, vthe road being graded up to the tops of the sleepers.

This sectional construction of the foundation, in combination with the blocks grouped and united to form a block-section, as described, constitutes thc irnportant feat-ure of this invention.

What is here claimed, and desired to be secured by Letters Patent, is

'lhe combination and arrangement of the sectional foundation planks or strips D D, resting on sleepers E E, with the main blocks B Band transverse blocks C C bolted together to form independent sectional blocks, and arranged in relation to each other to forni spaces c c between the main blocks, substantially as specified.

' DUNCAN MCKENZIE.

Witnesses:

Flinn. HAYNns, linnn. TUscH. 

